|x-3|+4=12
|x-3|=12-4=8
suy ra x-3= +-8
Nếu x-3=8
suy ra x=8+3=11
nếu x-3=-8
suy ra x=-8+3=-5
tick nha
|x-3|+4=12
|x-3|=12-4
|x-3|=8
=>x-3=8 hoặc x-3=-8
x=8+3 x=-8+3
x=11 x=-5
ai giúp mình bài này mình cho 3 like luôn
tim x ,biet
-(x+4)+(12+x)=2.x+12
tim x biet:
a,10-2(4-3x)=-4
b,-12+3(-x+7)=-18
tim x thuoc z , biet : 2x-3/3 + -3x +4/4+5x-12/5 = 241/60
tim x biet : a,-12/21×x + 3/7=-4/3, b, 2x +-3^2=5/4 , c, 75% x- 2/5=3/10, d, (3x-2)×(x+7)
De tim so tu nhien x,biet rang neu lay so do tru di 3 roi chia cho 8 thi duoc 12 , ta co the viet (x-3) chia cho 8 =12 roi tim x,ta duoc x =99
Bang cach lam nhu tren ,hay tim so tu nhien x ,biet rang neu nhan no voi 3 roi tru di 8 ,sau do chia cho 4 thi duoc 7
Giup minh nha moi nguoi
tim x thuoc z ,biet:
-3/4=x+1/-12
De tim so tu nhien x ,biet rang neu lay so do tru di 3 roi chia cho 8 thi dc 12 ,ta co the viet (x-3) :8=12roi tim x , ta duoc x =99.
Bang cach lam nhu tren ,hay tim so tu nhien x,biet rang neu no nhan voi 3 roi tru di 8 ,sau do chia cho 4 thi dc 7
a, Tim so tu nhien x, y biet rang 4<9/x<12/y<18
b, Tim so nguyen x, y biet rang x/2 - 2/y = 1/2
tim x biet
(-25)-(5.x-3)=4
5.x-6=20-(12-6)
-2.x-40=(5-x)-(-15+60)
